A system is provided wherein relatively low-end computers, such as portable, battery-powered computers ordinarily incapable of sophisticated Internet browsing functions may be used to browse the Internet. The enhanced computing ability for such portables is provided by a unique Internet server adapted for transposing data files to alternative, low-information-density form, preferably comprising simplified or single files suitable for rapid processing and display by connected portable and other low-end computers In embodiments wherein batter-powered field units are used, battery life is exhibited far beyond what would be expected for a battery-powered computer with computing power for browsing the Internet directly. In some embodiments of the invention adapted files are saved and identified for future use in communicating with specific devices over Internet connections.